What is Sidney Allen's NPI number?

Sidney Allen's National Provider Identifier (NPI) is 1174493282, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Sidney Allen's specialty?

Sidney Allen is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).

Where is Sidney Allen located?

Sidney Allen's practice location on file with NPPES is 4023 Chain Bridge Rd Ste 7, Fairfax, VA 22030-4121.

What is Sidney Allen's phone number?

The practice phone number listed in the NPPES registry for Sidney Allen is (571) 520-5454.

Is Sidney Allen's NPI active?

Yes — Sidney Allen's NPI (1174493282) is active in the NPPES registry as of the last update on 2025-11-05.

IndividualActive

Sidney Allen, PSYD

NPI 1174493282 · Clinical Psychologist · Fairfax, VA

Sidney Allen, PSYD is a Clinical Psychologist provider in Fairfax, VA (NPI 1174493282).

Provider details

NPI number: 1174493282
Entity type: Individual
Primary specialty: Clinical PsychologistBehavioral Health & Social Service Providers
Credential: PSYD
Sex: Female
Sole proprietor: Yes
License: 0810009184 (VA)

Specialties & taxonomies

Clinical PsychologistPrimary103TC0700XLicense 0810009184 (VA)
Behavioral Health & Social Service Providers

Profile Score

Established profile(53/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
Under 1 yr in registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

4023 Chain Bridge Rd Ste 7

Fairfax, VA 22030-4121

Phone: (571) 520-5454

Street-level locationGet directions

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Mailing address